Java error: Bad version number in .class file error when trying to run Cassandra on OS X
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by Sam Lee
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Published on 2009-10-23T03:59:47Z
Indexed on
2010/04/09
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I am trying to get Cassandra to work on OS X. When I run bin/cassandra, I get the following error:
~/apache-cassandra-incubating-0.4.1-src > bin/cassandra -f
Listening for transport dt_socket at address: 8888
Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:675)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:316)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:280)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374)
From what I could determine by searching, this error is related to incompatible versions of Java. However, as far as I can tell, I have the latest version of Java:
~/apache-cassandra-incubating-0.4.1-src > java -version
java version "1.6.0_13"
Java(TM) SE Runtime Environment (build 1.6.0_13-b03-211)
Java HotSpot(TM) 64-Bit Server VM (build 11.3-b02-83, mixed mode)
~/apache-cassandra-incubating-0.4.1-src > javac -version
javac 1.6.0_13
~/Downloads/apache-cassandra-incubating-0.4.1-src > echo $JAVA_HOME
/System/Library/Frameworks/JavaVM.framework/Versions/1.6/Home
Any ideas on what I'm doing wrong?
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